I just posted a compiled Universal Binary of MTK to the Open Source download page.  Here is where you can find it:

http://www.gauchosoft.com/Software/Open%20Source/Download/

After downloading, uncompress it, open the terminal and cd to the mtk directory, then you can start with the sample command listed on the download page and go from there to customize it to your liking.

Let me know if you run into any problems.